Question

from an external point P, a tangent PT and a secant PAB is

drawn to a circle with centre O. ON is perpendicular on the chord AB. Prove

(i) PA.PB = PN² – AN²

(ii) PN² – AN² = OP² – PT²

(iii) PA.PB = PT²

Answer 1

Do similarity and you will get your answer.

Answer 2

Please mark it as the brainliest